Electrical testing-battery.



E. MARCUSON. ELECTRICAL TESTING BATTERY. APPLICATION FILED JULY 6, 1912.

Patented Aug. 12, 1913.

mamaa E. MARUUSON. ELECTRIGAL TESTING BATTERY. APPLICATION FILED JULYG,1912.

3 9 'Patented Aug. 12,1913. 2 SHEETS-$11331 2.

WWW awp amtoz J. c; cmemom 2'6 may concern Be. it know; that Eons l.icnsori, a, smbject Oi). ill listing of Great Billfiill. and atpresentresiding in the city of new .r'orl-I, in the county and State ofNew York, have invent-ed sin new and useful improve- .menis inElectrical (Us.ting-Batteries, of which the following is aspecification.

My invc lion relates to the electrical testing of batteries andperiains. in the main, to a type of portable high potential battery einiloyed. in testing out electrical installations cables conduits and thelike, and the locating oi? -laulls therein and supplyin. a temporaryciu'r nt for a s slew of elec cal dislribuiion of the eonired potentiala sul titntc for the. working current thereof (lUIl the. period in whichit is desired to make tests for insulation and other cci'iditc for theoperating conconsidering these T from St) volts up cred to thechiliiypes o't batteries rang ward, my attention was 'l cultics ofinsulating the co is. not mily'nith respect to each within the containeror box. but the preservation of elicctive insulation between thecontainer and he ground or other COll'l'ilmll conducting medium.

The question of battery insulation Where from 50 volts to 500 or 1000must be considered, presents considerable diliiculty in open types ofcells Where the electrolyte ha. an opportunity of creepingsuch forexample as is customary in accuuiulator cells.

It is (he object of my invention 'to mprove first the insulation ofbatte ies of his type l'ietween the several cells or elements thereofand further to improve the insulaiion throughout as Well as to providefacili* ties for expediting the examination of the battery, and renderit readily renewable throughout or in part and finally provide a simpleand inexpensive construction cmbracing these objects whereby I. amenabled to place the battery on the market at a C0111 paratively lowprice. The different fealures chiiracteiistic of my invention whereinthese objects lie are embraced in the construction as illustrated in thedrawings hereto attached which when taken with the co-rcletire appendeddescriptive matter forms a part of this specification and the distinctfeatures of novelty are referred to in the claims appended hereto.

With reference. to the drawings. Figure 1 is aside elevational View ofmy improved testing battery with sciportion oI nearest lo the observerremoved. a fragmentary detailed View of the 'ng; crate and theinsulating nesting for the cells. Fig. 3 a side elevat-ional vie v ofone of my improved battery cells together with its insulating jacket.Fig. L is a cross sectional View hi the same taken on a line kl of Fig.3. Fig. is a plan View of the battery box taken on the line s9zc. Fig;1, showing the crate, cells and connections. 7

In the several figures similar characters of reference are employed toindicate like or the same parts Wheneinl designaies the bettery box.which is prefembly constructed; of well seasoned iniprcgnaked Wood. Ithas a central cross batten 2 on the cover side, and an oppos tely situabalten '3 on the bottom, as Well as two similarly disposed end battens4: l. The corer of the box. 1 consists two sections 5 and 6 each havingend dowels 9 cog: the cross batten 2 whereby the sections and 6 (whichtogether comprise the cover off thcbox l) are normally positioned. Astrap or handle 10 having its free ends secured to the box 1 by screws11, withhold the cover sections 5 and 6 against accidental displacementwhen the box is being carried by the strap 10 by end pressure.

1 designates r. cross strip of insulating material upon which is mountedbinding p zsis 1 carrying nuts 2 and The cross insulcting strip 1 issecured to and carried by the cross batten 2 by blocks 4. The bindincposis 1 and nuts 2 and 3 are electrically connected Wlii'l the terini llwire a of the electrodes from a battery cell b.

refers to a terminal cover or box; this is constructed preferably ofWood or other insulating material carried by the insulating sirip 1 andhousing the binding posts 1 carrying nuts 2 and 3.

5 refers to one of my improved battery units or accumulator cells of thetesting battery which is builtup of a battery cell or tube, and ispreferably in the form of a glass test tube, within which is theelectrolyte and a pair of battery elements aand e as Well as a hardrubber or; other suitable separator f there-between.

The battery unit Z; is insulated from a number of similar neighboringcells by plunging ity in an oil bath 9, contained in an outer ce'rryingtubek. The former tube 55 rests.

is cushioned therein by a quantity ofwooi i which is deposited in thebottom of the latter, which obviates accidental breakage of the glassdue to concussion. A bushing j around the tube or cell 6 and within thecell it provides a, spacing means to main tain an annular space between,the tubes or cells 5 and h wherein a film or jacket of insulating oil 9is carried. When a series of these battery units '7) are connectedtogether, the terminals (1' of the electrodes are insulated in aasimilarmanner by oil insulating jackets 8 and to further insure the insulationof said terminals from the box 1 5 or the cross'batten 2 I provide aninsulating rubber tubing 6* which is secured to the batten" 2, anddepends downwardly therefrom within the box 1 and into a quantity ofinsulated oil contained in a test tube or cell a. This terminal a isconnected with a binding nut 2 and after passing down through theinsulating oil in the tube 0 it is bent upon' itself and carried upthrough the insulating oil along side of the tube 0 where it is carriedto an element@ of abattery unit 5 To further insure the insulation ofthe terminal wi'reaan oiljacket-gin the annular space within the tube his provided. The annular space. is maintained between these 5 two tubesby a bushing j. The cross batten nuts 2 and 3 2 together with thebinding arranged on the same binding posts 1 and the insulating crossstrip 1, may be removed by loosening the binding screws 7 and releasingthe terminal wires a respectively. V The battery units 6 are normallypositioned and held within the battery box 1 by a crate B madepreferably of non-corrosive metallic strips riveted together. These arein the instance illustrated of angular formation and comprise horizontalparallel cross members l at the ends and similar longitudinal members 2and 3, on opposite sides p of the box 1 respectively and correspondingly similar vertical end members 4 conmecting the opposite ends thereofThe vertical members t are secured to. a bottom plate 5 preferably ofwood which is en veloped in a non-corrosive metallic casing 5o 6 and 7preferably of sheet lead.- Upon the upper surface thereof rests a fioorof insulating material 8 preferably of hard rub- I ber upon which thecells it of the battery units 1) and the terminal insulating cells 0-The members 2' and 3" have a plurality of uniformly distributedopenings 9 spaced substantially'equal to the diameter of the tube h inwhich are transversely carried the ends 1 of'eross strips 2 ofinsulating material preferably of hard sheet rubber, and the members 1are providodwith similar openings for the retaining of the terminals 1ofsimilar strips 2 of insulating material longitudinally of the box 1.The longitudioil jackets for them in order that the battery box 1together with the binding nuts 2 are backed nail and cross strips 2 ofinsulating material carried by the crate 1", being arranged at rightangles to each other in a manner as to provide a multiplicity of nestsas clearly shown in Fig. 5, Within which the battery cells I), togetherwith their insulating jackets h are firmly held while they are carriedby the insulated floor 8".

It will be observed by the construction of my improved testing batterythat the grouped units for the required electrometive force and currentoutput, are each insulated from one another by an insulating oil jacket,which is supported on all sides by insulating material and due to theouter cylindrical wall and convex bottom of their outer cells, a minimumof contact with the insulating strips 2 and the insulating floor 8" ispermitted which 'eond'uces to advantages in insulation, and moreover,the terminal wires a, of these units are insulated in an oilbath and theleading out endsthereo'i? are protected by a tube of insulating materialwhich envelope them to a point, where they enter the binding nuts 2.

In practice, the quantityof insulating oil g contained within the jacketor tube h, is such as to extend approximately upward, for about one-halfof the length of the cell 5 or about two-thirds of the length ofthe cellor 5 tube 71. I have considered in this connection the portability ofthe battery as well as the oil insulation of the units 6, and havetherefore provided only partialty' filled insulating the contained unitsmay be tipped at a considerable angle from the normal horizontalposition in any direction without spilling out the insulating oil 57.

The length of the battery elements d and e are considerably less thanthat of their containing tube 7), and the electrolyte in which they areimmersed in the saidtube is for the same reason kept correspondingly lowbut sufficient however, to properly cover the tops of the elements (Zand e in each of the containing cells. 1 Since the box 1 is merely aretainer for the crate B of the battery units 6, any splashing oroverflow from'the cells or oil tubes h will find a'means of exit andescape from the edges of the bottom 5 of the crate B and out of thecrevices of the bottom of the box 1 which for the purpose of drainage,is not. made liquid-tight.

When it is desired to remove the crate B together with the battery unitsb and electrode insulating cells 0, the terminal cover 5 is removed andthe binding screws 7 of oii so as to release the ends of the terminalwires a whereupon the cross batten 2 together with the insulating strip1, block at and the binding nuts 2 and 3 may be removed. To effect tieremoval of the crate B and 130 a and 6 are taken ofl' and the crate islifted out together With its contents from the box 1, when an inspectionof each unit b and the insulating cells may be made with facility, andthe entire battery rendered accessible for cleaning, renovation orrepair.

The battery elements (Z and e are composed of lead Wire, and theterminals a are lead Wires integral with and forming part of theelements (Z and e, and the electrolyte consists of the usual 25 percent. sulfuric acid solution with Water.

It Will be understood by the preceding description of my improvedelectrical testing battery, that I have provided a simple andinexpensive construction, whereby the great est degree of insulationbetween the units thereof may be preserved, while at the same timeaccessibility to them for inspection, renovation and repair is greatlyfacilitated, and

Having fully described my invention, I claim as new and desire to secureby Letters Patent of the United States 1. In a testing battery, acontainer, a plurality of unit battery cells provided with in sulatedenvelops and an insulating oil contained therein surrounding the batterycells the latter being electrically connected up- Within the container,terminals for the said cells leading out of the container and oilinsulating jackets surrounding the said terminals.

2. In a testing battery of the character described, the combination of aplurality of electrically connected battery units, and a containertherefor, a removable non-corrosive metallic carrying crate providedwith cross strips of insulating material and disposed Within the saidcrate as a lattice work nesting, said battery units being positioned andretained Within the nesting, and oil insulating jackets surrounding thebottom and side Walls of each of the said battery units.-

3. In a testing battery the combination of a plurality of cells eachbeing provided With a surrounding tube-containing an insulating oil,said tube having a bottom inner cushion, a spacing collar between theaccumulator cells and the said tube adapted to concentrically positionthe former in the latter, a crate provided With longitudinal andtransverse strips of insulating material disposed, with relation to eachother, in the formation of nests, said cells together with the saidinsulating tubes being "carried in the said nests, :1 containing box forthe hole, tier.- miiial connectors carried by the box connecting theterminal electrodes of the said accumulator cells, insulating jacketsfor the electrodes a sectional removable cover for the box and acarrying strap secured thereto and embracing the cover; substantially asdescribed.

4. In a testing battery the combination of a plurality of electricallygrouped insulated cells, a non-corrosive metallic crate provide withinsulating nests, the said cells being contained Within the said nests,a container for the crate and cells, terminal connections carried by thecontainer and connected with the leading-out terminals of a group of thesaid cells, and insulating jackets surrounding the leading-outterminals; substantially described.

In testimony whereof, I have signed my name to this specification in thepresence of two subscribing witnesses.

ELIAS MARCUSON.

lVitnesses ELIZABETH L. STERN, CHARLOTTE L. Dr: Lose.

